partain



Jfl PARTAIN.

PUMP.

APPLICATION FILED MAY 12 19l9.

Patented Dec. 30,1919.

2 SHEETSSHEET I.

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PUMP.

APPLICATION FILED MAY 12. I919.

Patented Dec. 30, 1919.

2 SHEETS-SHEET 2.

aywewtoz .J'OSEPH ZPARTAIN, or wnzniwsxoatmonivm.

PU P.

1 '0 all who m. it mag concerni *Be it known {that 'I, JOSEPHIPARTAIN, a citizen of the'llnitedStates, residingat Williams, in the'county'of Colusa andSta'te of California, have, invented new and useful Improvements in Pumps of which the *following is a specification.

' This invention relates to pumps of the force type, and .aims to providea pump which will deliver a large and even flow 01' water wlth a small amount'of'power.

An object of thefinvention is to provide a pump havinga plurality'of'pistons alternately operating withina single cylindeig'so that the water is forced upward in a con stant and even stream.

Another object is *to arrange "the connecting rods of the pistonsso that an even force will be exertedthereon,=tl1erebyreducin the power, necessary tor the operation o the pump.

Afurther object isthe provision of a novel form t of piston, which is especially adapted for a pump of thischaracter, the construction beingsuc h as to deliver a maximum quantity of water and toprevent the least resistance to the water passing through the cy'linderupon the return'stroke of thepiston.

Other objects and advantages of the invention will appear as the following description is read in connection with the accom panying drawings.

In the drawings: t Figure 1 is an elevation of a pump constructed in accordance with the present vention, the pump, 'cylinder and casing being shown in-section. i

Fig. 2 is a transversesectional view on the line 22 of Fig. '1.

F ig. 8 isan enlarged'central sectional vie through the cylinder and piston illustrating the construction of the said pistons and the arrangement of the rods.

Fig.4: is an enlarged detail vertical section through one of the pistons the sections being at right angles to Fig.

Fig. 5 isan enlarged view of the connections between the operating and plunger rod v of the piston.

Fig. 6 is a fragmentary perspective View of the connection between piston.

Figs. 7 and 8 are detail of the valve members.

Referring more specifically to the drawings, like characters of reference denote corperspective views Specification of Letters-Patent.

the bail and Paaammai 1919.

. Application'filed"May'lz, 191a SeriaI'No. 296,470.

responding parts throughout the several views. As'shown in the accompanyingdrawings, the pump comprises a cylinder 10, which :is connected 130 the lower end of the casing 7 through the mediumof threads 12 or other suitable connection. Thecasing extends up ward *and is provided with, aspout "1-1 ffor the discharge of the water or other liquid liftedbythe pump. i

Operated-"within'theflcylinder 10 is aip'lu-fl rality of pistons, preferablythree in numher, which are designated by "the numerals 14;,15 and-16. These pistons are designed to be alternately'operated within the cylinder 10 in a manner to be hereinafter described.

the said cylinder' being of sufiioientlength to permit of an alternate reciprocatory motion of the piston.

These pistons are of novelconstruction and .comprisea frame 17 and valve members 18, the former comprising "an outer ring 19 and an inner ring 20 ofrelatively lesswidth. The inner ring20 is of less diameter than the outer ring and clamped between these two rings is a pa'cking21, preferably of leather. This packing extends downward upon the inside of the {outer ring 19 and upwardupo'n the outsideiof the ring forcontact with the cylinder :10. As before stated the inner ring '20 is'of less width than the outer ring 19 and the" upper edge of the first mentioned ringand the upper edge of the packingfll is disposed below the upper edge of the outer ring 19, soas' 'to providea seat 22.

Mounted withinthe frame '17 area pair of semi-circular r-valve members 18, these valve members being each provided with pin'tl'es -23 moun'ted within openings "24 provided upon diametrically opposite sides of the ring 19. The edges of the valve members 18 rest upon the seat 22 when in closed position and within the outer ring 19, so

that upon the upward stroke of the piston the valves are closed and the water or other fluid is lifted. The inner or meeting edges,

of the valve members 18 are straight and are ground to form a tight joint, as indicated at 25, the upper corners being rounded so as to permit of the pivotal movement of the valve.

Secured to each of the valves is a bail 26, the lower ends of which are riveted to the inside of the outer ring 19 as indicated at 27,

the extremities of the bails being bent inward and seated Within notches 28 formed in I the upper edge of the inner ring 20 and packing 21, so as to provide a smooth surface for the seat 22. The ends of the bail are also provided with openings 29 which register with the openings 24 in the outer ring 19, the pintles 23 of the valve members 18 passing through these openings. Each of the pistons has secured to one of the valve members 18, a coiled spring 30, so that when the said members are opened the spring will contact with the opposite valve member and aid the valve in turning to the seats 22 under pressure of the water or other liquid being pumped.

Connected to the bail 26 of the lower piston 16, is a rod 31. Surrounding the rod 31 is a tubular rod 32, the lower end of which connected to the bail 26 of the piston 15, while surrounding the rod 22 is another tubular rod 33 having its lower end connected to the bail 26 of the piston 14:. The rods are thus concentrically arranged within the cylinder and are connected to their respecive pistons in a manner to exert an even pull thereon. The upper ends of the rods 31, 32 and 33 are connected respectively to the lower ends of rods 34:, 35 and 36, the two last mentioned rods being offset at their point of connection, while the rods 31 and arc in ahnement. The upper ends of the rods 34, 35 and 36 are connected respectively to the cranks 37, 38 and 39 of a crank shaft to, the said cranks being disposed at different angles so that one of the pistons is always upon theupper working stroke. The shaft a0 is mounted in suitable bearings 41 supported in any desired manner and has secured upon one end a pulley 4:2 by means of which power is applied to the shaft d0.

From theforegoing description and accompanying drawings, it will be seen that the invention provides an exceedin ly efiicient pump especially adapted for irrigating purposes and that it will deliver evenly a large volume of water at the expense of a minimum amount of power.

Having thus described my invention what is claimed is:--- a i i i 1. The combination with a cylinder of a piston comprising a frame formed of concentrically disposed rings of different widths to provide a valve seat entirely surrounding the interior of the frame, semi circular valves pivotally mounted within the frame and adapted to rest upon the seat and entirely fill the space within the frame and capable of opening to provide an unobstructed passage to said frame and a packing clamped between said rings and extending upward around the outer rin 2. A. piston comprising. a frame formed of concentrically disposed rings of different widths to provide a valve casing entirely surrounding the interior of the frame, a packing clampedbetween the rings and having one edge flush with the valve seat, semi circular valves pivotally mounted within the frame and adapted to rest upon the seat and entirely fill the space within the frame and capable of opening to provide an unobstructed passage to said frame and a bail having its ends connected at diametrically opposite sides of the frame.

3. A piston comprising a frame formed of concentrically disposed rings of different widths to provide a valve seat andentirely surroundingthe interior of the frame, semicircular valves pivotally mounted within the frame and adapted to rest upon the seat and entirely fill the space within the frame and capable of opening to provide an unobstructed passage through said frame and resilient means carried bythe piston for. aiding the valve members to return to closed position.

1. Apiston comprising a frame formed of.

concentrically disposed rings of different widths to provide a valve seat entlrely surrounding the interior of the frame, SBl'lll-Cll cular valves pivotally mounted within the frame and adapted to rest upon the seat and entirely fill the spacewithinthe frame and capable of opening to provide anunobstructed passage to the frame with a coil spring mounted upon one valve member for contact with the opposite member to aid said members in returning to closed position.

In testimony whereof I aiiix my signature. i JOSEPH PARTAIN. 

